<template>
  <div class="comment-reply">
    <van-nav-bar
      :title="
        comment.reply_count > 0 ? `${comment.reply_count}条回复` : '暂无回复'
      "
    >
      <template #left>
        <van-icon name="cross" @click="$emit('close')"></van-icon>
      </template>
    </van-nav-bar>
    <div class="scroll-wrap">
      <!-- 当前评论项 -->
      <comment-item :comment="comment"></comment-item>
      <!-- 当前评论项 -->

      <!-- 评论的回复列表 -->
      <van-cell title="全部回复" />
      <comment-list :source="comment.com_id" :type="'c'" :list="commentList"/>
      <!-- 评论的回复列表 -->
    </div>

    <!-- 底部区域 -->
    <div class="post-wrap">
      <van-button class="post-btn" size="small" round @click="isPostShow = true">写评论</van-button>
    </div>
    <!-- 底部区域 -->

    <!-- 发布评论  -->
    <van-popup v-model="isPostShow" position="bottom">
      <comment-post :target="comment.com_id" @post-success="onPostSuccess"/>
    </van-popup>
    <!-- 发布评论  -->
  </div>
</template>

<script>
import CommentItem from "@/views/article/components/comment-item.vue";
import CommentList from "@/views/article/components/comment-list.vue";
import CommentPost from "@/views/article/components/comment-post.vue";
export default {
  name: "CommentReply",
  data() {
    return {
      isPostShow: false,
      commentList:[],//评论回复列表
    };
  },
  props: {
    comment: {
      type: Object,
      required: true,
    },
  },
  components: {
    CommentItem,
    CommentList,
    CommentPost,
  },
  methods: {
    onPostSuccess(data){
      //更新回复数量
      this.comment.reply_count++
      // 关闭弹层
      this.isPostShow = false
      // 将最新回复内容展示到列表顶部
      this.commentList.unshift(data.new_obj)
    }
  }
};
</script>

<style scoped lang="less">
.scroll-wrap {
  position: fixed;
  top: 92px;
  left: 0;
  right: 0;
  bottom: 88px;
  overflow-y: auto;
}
.post-wrap {
  height: 88px;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  border-top: 1px solid #d8d8d8;
  .post-btn {
    width: 60%;
  }
}
</style>